52454021 has 8 divisors (see below), whose sum is σ = 53702784. Its totient is φ = 51210880.

The previous prime is 52453991. The next prime is 52454029. The reversal of 52454021 is 12045425.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52454021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52454029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21941 + ... + 24213.

It is an arithmetic number, because the mean of its divisors is an integer number (6712848).

Almost surely, 2^52454021 is an apocalyptic number.

It is an amenable number.

52454021 is a deficient number, since it is larger than the sum of its proper divisors (1248763).

52454021 is a wasteful number, since it uses less digits than its factorization.

52454021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2811.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 52454021 is about 7242.5148256666. The cubic root of 52454021 is about 374.3342760489.

Adding to 52454021 its reverse (12045425), we get a palindrome (64499446).

It can be divided in two parts, 524 and 54021, that added together give a palindrome (54545).

The spelling of 52454021 in words is "fifty-two million, four hundred fifty-four thousand, twenty-one".